%0 Journal Article %A L. V. Iogansen %A F. A. Uvarov %T Search for lower collective electron excitations in the benzene ring %J Doklady Akademii Nauk %D 1969 %P 516-517 %V 189 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1969_189_3_a19/ %G ru %F DAN_1969_189_3_a19